Hi,<br><br>I recently found someone was using one of my Asterisk servers to make international calls via some SIP method that allowed them to bypass authentication (running 1.4.21.1 so I'm not sure how they did this since the major vulnerability for this was patched in 1.4.18.1). At any rate I caught it the same day they started this, so I've blocked their IP range and put in some monitoring solutions upstream.<br>
<br>I'd like to lock down the servers as far as Asterisk goes, so this is my situation:<br><br>I'm running two Asterisk servers between two sites. They use DUNDi to route calls between the two servers so there is no dialplan to route calls between the two. Firewalls have been configured to allow SIP clients to connect from the Internet. I'd like to change my sip.conf to allowguest=no without having to recreate dialplans between the two. How is this accomplished? I can't seem to find much on using allowguest=no in sip.conf.<br>
<br>Thanks in advance.<br>